a confession from lance armstrong. in the first part of armstrong's highly - anticipated oprah winfrey interview. the once celebrated cyclist admits to doping. saying he will spend the rest of his life apologizing - even if the apologies may come too late. melisa raney has this report. >> the question is that why come clean now? he struggled to explain. >> i do not know if i have an answer. this is one big lie that i repeated a lot. >> the 41 year-oldnce an athlete that could do no wrong. fighting off cancer to win the titles. last october the anti doping agency released a scathing report. that he was at the center of the sophistic doping operation. he has been stripped of all of his titles and revoked olympic medal. he understands how people have described him has arrogant. but says >> i deserve this. hey, o'bryan getting so screwed here. and you--0 for -- i am getting screwed here. i am not the same over winfrey, i am getting screwed. it was not true. >> the world toping industry saying that this will not reverse the